National Resource Center on ADHD (a program of CHADD)
www.help4adhd.org

Attention Deficit Disorder Association (ADDA)
www.add.org

ADD Resources
www.addresources.org

More Attention, Less Deficit: Success Strategies for Adults with ADHD (podcasts, books and resources compiled by Ari Tuckman, PsyD, MBA, a leading specialist in ADHD)
http://adultadhdbook.com/

Answers to your Questions about AD/HD by Patricia O. Quinn, MD and Kathleen Nadeau, PhD
www.addvance.com

ADD Forums: The most comprehensive member-moderated forum for adults sufferers. Topics include general issues, relationships, careers, treatment and management, and co-existing conditions
http://www.addforums.com/